"own pattern" is correct and usable in written English.
You can use it when something is following its own unique pattern, or when something is developing its own personal pattern. For example: "He is finding his own pattern for dealing with a difficult work situation."
Everything just fell right in its own pattern.
The Baltimore Orioles have their own pattern: inexperienced manager watches overmatched team wheeze to the end.
I think he is an incredibly tortured soul who couldn't break his own pattern of self-destruction.
Visitors are invited to use the special wooden rake to create their own pattern In traditional Buddhist monasteries, Zen gardens were used as an aid to meditation.
Dr. Lewis, an evolutionary ecologist at Tufts University, points out six species in this meadow, each with its own pattern of flashes.
Each organ has its own pattern of Qi and each organ is represented on the tongue, which presents Zhai with a kind of map of the body's health.
Although there is a huge array of horns and frills in this group, each side seemed to stick to their own pattern.
But since they dispersed from the ancestral human population, each has accumulated its own pattern of genetic differences through random change and natural selection.
And within each of these categories, there are many different fatty acids, each of which has its own pattern of activity in the body.
Cappellini's new Mr. Bugatti chairs, made of crumpled tin injected with polyurethane, were mass-produced one-offs, each with its own pattern of dents, made possible by advances in production technology.
This befuddlingly complex series of overlapping deals, each with its own pattern of preferences, schedules and exclusions, undoubtedly adds to the political and technical difficulties of negotiating a multilateral WTO deal.
